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Setting up several disks to work as a single disk

You can set up two or more disks or volumes to work together as a single, large volume.

  1. In Disk Utility, select one of the disks you want in the set and click RAID.
  2. Type a name for the set and choose a format from the Volume Format pop-up menu. Usually you will choose the Mac OS Extended (Journaled) format.
  3. Choose Concatenated Disk Set from the RAID Type pop-up menu.
  4. Click Create.
  5. Drag the disks you want to use to the set.

You cannot remove individual disks from a concatenated disk set.

See also

RAID